The equation in slope-intercept form for a line with an undefined slope passing through the point (5,3) is y = 3.
To write an equation in slope-intercept form of a line with an undefined slope, we can use the formula y = b where 'b' is the y-coordinate of the given point. In this case, the point (5,3) has a y-coordinate of 3, so the equation of the line is y = 3.
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